Re: Strange error related to temporary tables

I executed what you suggest below, see the results below. Short
conclusion: the type is there in pg_type, the relation is not there in
pg_class. Is there anything I should look for more ?

Cheers,
Csaba.

> BTW, when this happens, does the error persist? If it's a race
> condition you'd expect not (because the guy who successfully created the
> temp table would soon drop it again). When we saw this problem before,
> we were speculating that a temp table's pg_type row had somehow not
> gotten dropped during table drop, which'd lead to a persistent failure.
>
> Note that a "persistent" failure could still only manifest occasionally,
> if the unwanted pg_type row were in a high-numbered pg_temp_NNN schema
> that doesn't get used often. So i guess the correct thing to do is
> "select oid, xmin from pg_type where typname = 'temp_report'" and see
> if there are any long-lived entries (xmin far away from the others would
> be a tipoff).

test03=> select oid, xmin from pg_type where typname = 'temp_report';
oid | xmin
----------+-----------
58293995 | 220215039
(1 row)

test03=> select * from pg_type where typname = 'temp_report';
typname | typnamespace | typowner | typlen | typbyval | typtype |
typisdefined | typdelim | typrelid | typelem | typinput | typoutput |
typreceive | typsend | typanalyze | typalign | typstorage |
typnotnull | typbasetype | typtypmod | typndims | typdefaultbin |
typdefault
-------------+--------------+----------+--------+----------+---------+--------------+----------+----------+---------+-----------+------------+-------------+-------------+------------+----------+------------+------------+-------------+-----------+----------+---------------+------------
temp_report | 58006858 | 16386 | -1 | f | c |
t | , | 58293994 | 0 | record_in | record_out |
record_recv | record_send | - | d | x |
f | 0 | -1 | 0 | |
(1 row)

test03=> select * from pg_namespace where oid=58006858;
nspname | nspowner | nspacl
-----------+----------+--------
pg_temp_8 | 10 |
(1 row)

test03=> select count(*) from pg_class where relname='temp_report';
count
-------
0
(1 row)